The ADINA System is very effective in
FSI analyses in which large structural motions are present. The fluid can be
modeled as either incompressible, slightly compressible, or fully compressible,
and totally different meshes for the fluid and structure can be used. Various
turbulence models are also available.

The analysis of the model shown here gives insight into the response
characteristics of an ABS system. The sudden application of the steel piston
movement pushes the brake fluid into the housing and moves the steel ball
in the brake fluid from the bottom of the housing to contact at the top.
The pressure and flow characteristics of the brake fluid and the stresses
in the steel ball are of interest.